Year	Percent of GDP (Units)
1990	20.003
1991	17.144
1992	17.622
1993	33.239
1994	28.069
1995	25.587
1996	21.061
1997	21.225
1998	20.620
1999	19.218
2000	16.260
2001	16.634
2002	19.094
2003	19.123
2004	18.384
2005	21.695
2006	22.368
2007	16.958
2008	19.721
2009	18.107
2010	16.255
2011	16.895
2012	13.163
2013	13.306
2014	14.159
2015	16.322
2016	17.038
2017	17.118
2018	15.251
2019	14.140
2020	13.008
2021	14.186
2022	13.817
2023	13.543
2024	14.163
2025	14.491
2026	14.743
2027	14.920
2028	15.156
2029	15.414